Paving-block.



block according to it, partly in section; Vand UNirnn STATES Patented April 5, 1904-..

Parar Orricn.

FRANCIS E. COOPER, OF W'ATERLOO, ENGLAIID.L

PAVING-BLOCK.

SPECIFICATION forming part of Letters Patent No. 756,338, dated April 5, 1904;

Application filed December 1,1903.

T0 a/ZZ whom, t 11i/(ty concern:

Be vit known that I, FRANors EDWARD COOPER, a subject of the King of England, and a resident of Vaterloo, in the county of Lancaster, England, have invented an Improved Paving-Block, of which the following is a specification.

This invention has reference to wood paving-blocks, and more particularly to that type which is comprised or made up of a comparatively large number of small pieces of timber bound together and constituting together a single article or block.

The invention will be described with the ai( of the accompanying' drawings, in which- Figure l is a plan showing a compound Fig. 2 is an end view, partly in section, while Fig. 3 is a plan showing the staple employed in connection with the block.

According to this invention the block (generally designated (l) consists of a plurality of slabs Z of timber of any suitable kind placed' evenly one upon another side by side Yand having along each side or edge a deep narrow groove at c, which when the slabs are placed together evenly forms a continuous deep groove from end to end of the block, and in each of these grooves is inserted and driven a thin deep steel or like staple, comprised of a thin deep straight bar (Z, with a spike (Z at each end and in the middle or at intermediate points. A suitable thickness of metal forming the staple is from ten to fourteen gage.

Preferably the end slabs t of the block would be made thicker than the others, and the spikes (Z at the end of the staples would be made so as to enter the end slabs close to their inner faces., This renders the length of the staple and the weight of metal as small as possible; but the grooves c will extend to the end of the block. These grooves may of course be readily made by a deep saw-cut.

In some cases where the blocks are laid in rows, as is done in paving streets, they are made to interlock by means of the staples (Z, this being effected by extending one end of the staples by a projecting portion (Z2, which projects beyond the end of the block, and this part which extends beyond the end of the block tits into the groove c of the adjacent sean No. 183,358: or@ modell.)

blocks and so becomes interlocked with it and effects an interlocking of the whole row of blocks.

W'hen the staples (Z are driven down into the groove c, the spikes (Z enter the slabs and firmly hold and bind them together in all directions, the inside edges of the end spikes (Z being tapered outward from the back to cause this drawing together of thc several slabs firmly one upon the other. There is then produced a firmly bonded and united article, which when in use and subjected to wear does not come to pieces-that is, the slabs of which it is made do not become detached and separated, and the whole article or block practically is bound and intact.

In some cases the staples may be provided with projections on the back, as shown in dotted lines and marked (Z3, which. would project into grooves of the blocks of the row next them, the grooves c of the blocks in such a case being made so deep that a groove will exist outside the back edge of the staples to receive the projecting ends of the parts (Z3.

Having now particularly described my invention, what I claim as new, and desire to secure by Letters Patent, is

l. The herein-described wood paving-block, consisting of a plurality of wood slabs of the full width and depth of the block, having a deep narrow groove c along each side, and a staple (Z of thin iiat metal, with spikes (Z, lying within each of said grooves, and driven into the slabs; substantially as set forth.

2. The herein described wood pavingblocks, consisting' of a plurality of wood slabs Z of the full width and depth of the block,

FRANCIS E. COOPER.

lVitnesses:

S. GrooDALL, GUY Oxn. 

